How did Einstein arrive at Time in SRT ?=.Thinking about why photon has constant speed Einsteindecided that something must be happened with the space and time.And then (to have time) he took distance ( d=vt ) and divided onconstant speed of quantum of light (c) and had negative time(t =d/c=1/ 3 X 10^8 meters/second) . Later Minkowski (trying to understandSRT ) took this negative time as a positive (! ) geometrical 4D- dimension (!)and gave his math-geometrical interpretation.In the beginning many physicists said that it is impossible to 1 secondbe equal to 1 centimeter or 1 meter, or as someone wrote:1 second = 1 second to you whether you are travelling at 40mph,or 400,000,000mph. But this abstraction somehow was adopted.Why this idea was adopted? Maybe because of its beauty.One physicist said me : it is impossible to be physicistif you don"t understand the beauty of Minkowski SRT explanation .Maybe, he is correct on 100% , but there is a very small problem:nobody knows what Minkowski space is.About 2500 years ago Plato wrote:". . by Beauty that beautiful things are beautiful . . .by largeness that large things are large and larger things larger,and by smallness that smaller things ate smaller . . . .. . . by tallness one man is taller than another . . .. . . . and the shorter is shorter by the same ; . . . . . "In my opinion in physics we have situation:". . by Beauty that beautiful theories are beautiful . . ."Every math beauty must have its own concrete physical and geometricalparameters. Without these precise physical details we have a puremathematical game and many paradoxes in physics.Therefore more than 100 years the debates around SRT have no end.=========..socratus

The secret of God and Existence is hidden
in the ' Theory of Vacuum and Light Quanta' .

Physicists invented negative time and then try to understand its existence.Time exists only in the third dimensional gravity reality ( like in planets )Time exists only as a result of the process which was explained in SRT and GRT .Time doesn't exist outside third dimensional gravity reality.============...

The secret of God and Existence is hidden
in the ' Theory of Vacuum and Light Quanta' .